CVE-2024-10449: Hospital Appointment System SQLi Flaw

CVE-2024-10449 Overview

A SQL Injection vulnerability has been identified in Codezips Hospital Appointment System version 1.0. The vulnerability exists in the /loginAction.php file, where improper sanitization of the Username parameter allows attackers to inject malicious SQL queries. This flaw enables remote attackers to manipulate database queries, potentially leading to unauthorized access, data theft, or database manipulation.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive patient data, or compromise the underlying database server without requiring any authentication.

Affected Products

• Codezips Hospital Appointment System 1.0

Discovery Timeline

• October 28, 2024 - CVE-2024-10449 published to NVD
• October 31, 2024 - Last updated in NVD database

Technical Details for CVE-2024-10449

Vulnerability Analysis

This SQL injection vulnerability arises from insufficient input validation in the login authentication mechanism of the Hospital Appointment System. The /loginAction.php file processes user-supplied data from the Username parameter directly in SQL queries without proper sanitization or parameterized queries. This allows attackers to craft malicious input that alters the intended SQL query logic.

The vulnerability is particularly concerning in a healthcare context, as hospital appointment systems typically contain protected health information (PHI), patient records, and administrative credentials. Successful exploitation could lead to HIPAA compliance violations and exposure of sensitive medical data.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries (prepared statements) when processing user input in the authentication module. The application directly concatenates user-supplied values into SQL query strings, a dangerous practice that enables SQL injection attacks.

Attack Vector

The attack can be initiated remotely over the network without requiring authentication. An attacker can submit specially crafted SQL injection payloads through the Username field on the login page. The malicious input is passed to /loginAction.php, which processes it without sanitization, allowing the attacker to:

• Bypass authentication by manipulating the login query
• Extract database contents using UNION-based or blind SQL injection techniques
• Modify or delete database records
• Potentially execute system commands if database privileges allow

The exploitation details have been publicly disclosed, as noted in the GitHub CVE Issue Discussion and VulDB entry #282009.

Detection Methods for CVE-2024-10449

Indicators of Compromise

• Unusual SQL syntax or escape characters in web application logs for /loginAction.php
• Multiple failed login attempts with suspicious payloads containing SQL keywords (SELECT, UNION, OR, --, etc.)
• Unexpected database queries or errors logged by the database server
• Evidence of data exfiltration or unauthorized database access in audit logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the login endpoint
• Monitor web server access logs for requests to /loginAction.php containing SQL injection signatures
• Implement database query logging and alerting for anomalous query patterns or syntax errors
• Use intrusion detection systems (IDS) with SQL injection detection signatures

Monitoring Recommendations

• Enable detailed logging on the web application server to capture full request parameters
• Configure database audit logging to track all queries executed against sensitive tables
• Set up real-time alerting for SQL error messages that may indicate injection attempts
• Regularly review authentication logs for patterns suggesting automated attack tools

How to Mitigate CVE-2024-10449

Immediate Actions Required

• Restrict network access to the Hospital Appointment System to trusted networks only
• Implement a Web Application Firewall (WAF) with SQL injection protection rules
• Review and audit all user accounts for signs of unauthorized access or privilege escalation
• If possible, take the application offline until a patch or workaround is implemented

Patch Information

As of the last NVD update on October 31, 2024, no official patch has been released by Codezips for this vulnerability. Organizations using the Hospital Appointment System should contact the vendor directly for remediation guidance or consider implementing the workarounds below. Monitor the VulDB entry for updates on patch availability.

Workarounds

• Implement parameterized queries (prepared statements) in the /loginAction.php file to prevent SQL injection
• Apply strict input validation to whitelist only expected characters for the Username parameter
• Deploy a Web Application Firewall to filter malicious SQL injection payloads
• Limit database user privileges to the minimum required for application functionality
• Consider isolating the database server on a separate network segment with restricted access

# Example: Configure ModSecurity WAF to block SQL injection attempts
# Add to Apache configuration or .htaccess
SecRuleEngine On
SecRule ARGS "@detectSQLi" "id:1,phase:2,deny,status:403,log,msg:'SQL Injection Blocked'"